WLAN Calculator

After you enter your parameters (such as access points, antennas, cables, etc.), the calculator generates the required RX sensitivity and the estimated RX signal strength in the receiver end. Please make sure that the RX signal strength is higher than the RX sensitivity in order to maintain the wireless communication.

Note:

Calculated results provided on this site are for design references only. On-site verification is required to obtain actual values.

You can change the distance and frequency values to calculate the free space loss.

Distance

Frequency

Free Space Loss (dB)

MHz

100.1

Note: After entering a value in a field, press [Enter].

Distance

Frequency

H1: Fresnel Zone Radius (meter)

km

MHz

5.58

Note: After entering a value in a field, press [Enter].

H2: Earth Bulge (meter)

0.17

H: Theoretical Antenna Height (meter)

5.75

Minimum Antenna Height (meter)

3.45

If there is a significant difference in the heights of two sites, you can tilt the higher antenna at an angle downwards.

Distance

Hb: Base Antenna Height (m)

Hr: Remote Antenna Height (m)

Tilt Angle ( ° )

km

0

Note: After entering a value in a field, press [Enter].

Note: You can use this WLAN range calculator to easily calculate the theoretical
transmission distance. This allows you to determine whether a given combination
of wireless devices can achieve the desired transmission distance. This WLAN range
calculator allows you to make informed decision when selecting antennas and devices
for your wireless applications. However, the calculated results are based on the
assumption that signals are transmitted in an unobstructed, line-of-sight environment
without electronic interference. In an environment, various factors such as mismatched
impedance, electronic noise, building obstruction, and reflected signals can impact
wireless network performance. Thus, there might be differences between the calculated
transmission distance and the actual distance in the field.